PL145132B1 - Copper alloy - Google Patents

Copper alloy Download PDF

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Publication number
PL145132B1
PL145132B1 PL25188185A PL25188185A PL145132B1 PL 145132 B1 PL145132 B1 PL 145132B1 PL 25188185 A PL25188185 A PL 25188185A PL 25188185 A PL25188185 A PL 25188185A PL 145132 B1 PL145132 B1 PL 145132B1
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PL
Poland
Prior art keywords
weight
alloy
copper
manganese
zinc
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PL25188185A
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Polish (pl)
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PL251881A1 (en
Inventor
Zbigniew Rdzawski
Zbigniew Misiolek
Kazimierz Znamirowski
Zdzislaw Czupryna
Wieslaw Kurczab
Ginter Duraszok
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Inst Metali Niezelaznych
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Priority to PL25188185A priority Critical patent/PL145132B1/en
Publication of PL251881A1 publication Critical patent/PL251881A1/en
Publication of PL145132B1 publication Critical patent/PL145132B1/en

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Description

Przedmiotem wynalazku jest stop miedzi o wysokiej odpornosci korozyjnej oraz odpornosci na cieranie, o bardzo dobrej podatnosci do przeróbki plastycznej na goraco'i na zimno, przezna¬ czony zwlaszcza do wykonywania monet, medali oraz galanterii metalowej.Z polskiej normy PN-77/H-87027 znany jest stop Cu Ni 18 Zn 20 zawierajacy wagowo 60-64% miedzi, 17-19% niklu, do 0,5% manganu, reszte stanowi cynk.Znany jest takze z normy ASTM stop C 75200 zawierajacy wagowo 63-66,5% miedzi, 16,5-19,5% niklu, do 0,50% manganu, reszte stanowi cynk.Z normy BS 2870 znany jest równiez stop NS-106 zawierajacy wagowo 60-65% miedzi, 17-19% niklu, 0,05-0,50% manganu, reszte stanowi cynk, a takze stop NS-108 zawierajacy wagowo 60-65% miedzi, 19-21% niklu, 0,05-0,50% manganu, reszte stanowi cynk.Zgodnie z wynalazkiem, stop miedzi charakteryzuje sie tym, ze zawiera wagowo 61-65% miedzi, 19-21% niklu, 0,50-0,90% manganu, do 0,05%) magnezu, reszte stanowi cynk.Sklad chemiczny stopu wedlug wynalazku pozwala uzyskac stop o estetycznym kolorze srebrzystym, lepszej odpornosci na korozje i scieranie od znanych stopów, przy jednoczesnie bardzo dobrej odksztalcalnosci na goraco i na zimno oraz bardzo wysokiej odpornosci na tworze¬ nie brudzacych nieestetycznych nalotów, a takze o wysokiej zdolnosci do polerowania.Stop wedlug wynalazku moze byc produkowanyzarówno sposobem konwencjonalnym przez topienie w piecach indukcyjnych i odlewanie do wlewnic w sposób statyczny, jak równiez z zastosowaniem odlewania pólciaglego lub ciaglego. Stop odlany sposobem ciaglym poziomym nadaje sie szczególnie do obróbki plastycznej na zimno z pominieciem procesu walcowania na goraco.Ponizej podano przyklad stopu wedlug wynalazku.Stop miedzi zawiera wagowo 0,85% Mn, 20,6% Ni, 15,6% Zn, 62,93% Cu i 0,02% Mg.Wlasnosci tasm wykonanych z tego stopu zestawiono ponizej: — stan skrystalizowany Hv — 84, Rm — 400-450 MPa, Ro* — 140-180 MPa, Aio40%. — stan po walcowaniu na zimno gniotem ~50% Hv — 220, Rm — 600-650 MPa, R 0.2 — 400-550 MPa, Aio~4%.2 145 132 Ze wzgledu na wysoka twardosc i odpornosc na scieranie a takze korzystne cechy umozliwia¬ jace latwe polerowanie oraz atrakcyjny kolor, stop ten nadaje sie szczególnie do wyrobu galanterii, a takze moze znalezc zastosowanie do produkcji nakryc stolowych.Otrzymany stop nadaje sie do przeróbki w automatycznych prasach kuzniczych, nie powoduje przedwczesnego zuzycia narzedzi, ponadto zachowuje przez dlugi okres czasu estetyczny pozba¬ wiony brudzacego nalotu wyglad.Zastrzezenie patentowe Stop miedzi zawierajacy wagowo 61-65% miedzi, 19-21% niklu, cynk i mangan, znamienny tym, ze zawiera wagowo 0,5-0,9% manganu, do 0,05% magnezu, reszte stanowi cynk.Pracownia Poligraficzna UPPRL. Naklad 100 egz.Cena 400 zl PLThe subject of the invention is a copper alloy with high corrosion resistance and abrasion resistance, with a very good susceptibility to hot and cold plastic working, especially for making coins, medals and metal accessories. From the Polish standard PN-77 / H- 87027 is known Cu Ni 18 Zn 20 alloy containing 60-64% by weight of copper, 17-19% by weight of nickel, up to 0.5% of manganese, the rest is zinc. Also known from ASTM standard C 75200, containing 63-66.5 by weight % copper, 16.5-19.5% nickel, up to 0.50% manganese, the rest is zinc. From BS 2870 there is also known an alloy NS-106 containing 60-65% by weight copper, 17-19% nickel, 0 0.05-0.50% manganese, the balance is zinc, and also an NS-108 alloy containing 60-65% by weight copper, 19-21% nickel, 0.05-0.50% manganese, the balance being zinc. , the copper alloy is characterized by the fact that it contains 61-65% by weight of copper, 19-21% nickel, 0.50-0.90% manganese, up to 0.05%) magnesium, the rest is zinc. The chemical composition of the alloy according to the invention allows obtain an alloy with an aesthetic silver color, better corrosion and abrasion resistance than the known alloys, while at the same time having very good hot and cold deformation properties and very high resistance to the formation of dirty, unsightly coatings, as well as high polishability. The alloy according to the invention can be produced by both the conventional method by melting in induction furnaces and casting into ingot molds in a static manner, as well as by using semi-continuous or continuous casting. The alloy cast in a continuously horizontal process is particularly suitable for cold forming without hot rolling. The following is an example of an alloy according to the invention. The copper alloy comprises 0.85% by weight Mn, 20.6% Ni, 15.6% Zn, 62 , 93% Cu and 0.02% Mg. The properties of tapes made of this alloy are listed below: - crystallized state Hv - 84, Rm - 400-450 MPa, Ro * - 140-180 MPa, Aio40%. - condition after cold rolling with crushing ~ 50% Hv - 220, Rm - 600-650 MPa, R 0.2 - 400-550 MPa, Aio ~ 4% .2 145 132 Due to high hardness and abrasion resistance as well as favorable features Enabling easy polishing and an attractive color, this alloy is particularly suitable for the production of accessories, and can also be used in the production of table covers. The resulting alloy is suitable for processing in automatic forging presses, does not cause premature wear of tools, and also retains its durability for a long time. aesthetic time free of dirty coating. Patent claim A copper alloy containing 61-65% by weight of copper, 19-21% by weight of nickel, zinc and manganese, characterized in that it contains 0.5-0.9% by weight of manganese, up to 0, 05% magnesium, the rest is zinc. UPPRL Printing Workshop. Mintage 100 copies Price PLN 400 PL

Claims (1)

1. Zastrzezenie patentowe Stop miedzi zawierajacy wagowo 61-65% miedzi, 19-21% niklu, cynk i mangan, znamienny tym, ze zawiera wagowo 0,5-0,9% manganu, do 0,05% magnezu, reszte stanowi cynk. Pracownia Poligraficzna UPPRL. Naklad 100 egz. Cena 400 zl PL1. Claim A copper alloy containing 61-65% by weight of copper, 19-21% by weight of nickel, zinc and manganese, characterized in that it contains 0.5-0.9% by weight of manganese, up to 0.05% magnesium, the balance being zinc . Printing House UPPRL. Mintage 100 copies Price PLN 400 PL
PL25188185A 1985-02-06 1985-02-06 Copper alloy PL145132B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL25188185A PL145132B1 (en) 1985-02-06 1985-02-06 Copper alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25188185A PL145132B1 (en) 1985-02-06 1985-02-06 Copper alloy

Publications (2)

Publication Number Publication Date
PL251881A1 PL251881A1 (en) 1986-08-12
PL145132B1 true PL145132B1 (en) 1988-08-31

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PL25188185A PL145132B1 (en) 1985-02-06 1985-02-06 Copper alloy

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PL (1) PL145132B1 (en)

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PL251881A1 (en) 1986-08-12

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